html, body, ul, ol, dl, div, h1, h2, h3, h4, h5, h6, p, input, button, textarea, span, a {
    padding: 0;
    margin: 0
}

a, a:hover {
    text-decoration: none;
    color: #000;
}

input, button {
    outline: none;
    /* border: 0; */
}

img {
    border: 0;
    vertical-align: middle;
}

ul, ol {
    list-style: none;
}

i, em {
    font-style: normal;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.clearfix::before, .clearfix::after {
    content: "";
    display: block;
    clear: both;
}

/* 版心 */

.w {
    width: 1200px;
    margin: 0 auto;
}

